Public water system · MO4243382
ActiveSpring Lake Ranch
At a glance
Spring Lake Ranch (PWSID MO4243382) is an active transient non-community water system in Washington County, Missouri. It reports serving 25 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
18
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Spring Lake Ranch compare with other water systems in Washington County?
By EPA's size categories, Spring Lake Ranch is a very small system (500 people or fewer). Washington County has 37 active public water systems. Its population served is well below the county average of 243 people per system, and accounts for 0.3% of the 8,999 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Spring Lake Ranch is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Missouri has 1,103 active transient non-community water systems, 37% of the state's 2,943 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,521 Missouri systems (86%) list groundwater as their primary source.
Who owns and regulates Spring Lake Ranch?
EPA lists Spring Lake Ranch as privately owned. The MO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 26 of the 37 active systems in Washington County (70%) are also privately owned.
Does Spring Lake Ranch have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2025. The violations listed here began between July 2023 and September 2025. By type: 2 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 3 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-08-24 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 3 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Spring Lake Ranch: frequently asked questions
Who runs Spring Lake Ranch?
Spring Lake Ranch (PWSID MO4243382) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Spring Lake Ranch serve?
Spring Lake Ranch reports serving 25 people through 18 service connections in Washington County, Missouri.
Where does Spring Lake Ranch get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Spring Lake Ranch have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Spring Lake Ranch's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2025. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Spring Lake Ranch's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Spring Lake Ranch is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Potosi Pws | Washington | 2,527 | Community | Groundwater |
| Kingston K 14 School Primary | Washington | 975 | Non-transient non-community | Groundwater |
| Potosi East | Washington | 900 | Community | Groundwater |
| Ymca Trout Lodge & Camp Lakewood | Washington | 800 | Transient non-community | Groundwater |
| Washington County Pwsd 1 | Washington | 503 | Community | Purchased groundwater |
| Irondale Pws | Washington | 420 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Spring Lake Ranch, PWSID MO4243382, Missouri”, https://aquacensus.com/water-systems/missouri/spring-lake-ranch-mo4243382 (data as of October 1, 2026).